JEE PHYSICS MCQ: NUCLEI

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A nucleus decays by

{\mathrm{\beta }^ + }

-emission followed by a

\gamma - \mathrm{emission}

. If the atomic and mass numbers of the parent nucleus are

Z

and

A

respectively, the corresponding numbers for the daughter nucleus are respectively

View answer and explanation

Correct option: C

Z - 1

and

A

Option C (

Z - 1

and

A

) is correct because

{\mathrm{\beta }^ + }

-emission decreases the atomic number by 1, while

\gamma

-emission does not change either number.

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